Prove that . use this relationship to show that, if then I have done the first part: Let and then for LHS now my problem is the second part, after i subsitute into to get , i don't know what to do. Thanks
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Let Apply again the first identity for and replace back w.
thanks! i did that, and let and so i had now i'm stuck, doesn't give a value
If then b must be 0. In this case Edited.
Last edited by red_dog; July 30th 2009 at 12:45 AM.
i thinking something along that line but didn't have any confirmation thanks!
Originally Posted by red_dog If then b must be 0. In this case Whoops! I think you mean 'If then b must be 0'. Grandad
Originally Posted by Grandad Whoops! I think you mean 'If then b must be 0'. Grandad Sorry! You're right! I've edited.
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